Feeling refreshed from my recent beach vacation (check out the video: [ Ссылка ]) we dive back into the custom BMW R90/6 Bobber by installing the new clutch and the refinished transmission.
The clutch on airheads are more like an automotive clutch than the units you'd typically find on a motorcycle. Rather than a series of friction discs and metal discs held in a clutch basket, the airhead uses a dry clutch held between a pressure plate and thrust ring by a spring plate. It requires the use of a centering tool to ensure the transmission input spline engages easily during install. Rather than pay good money for a pre-made tool, the little benchtop lathe makes a part that serves the same purpose for the cost of a little 7/8" aluminum rod.
The transmission itself is a bit like an aircooled volkswagen's in that it's simply held in place by four bolts. Then it's simply a matter of bolting down the driveshaft.
While we're at it we throw in the starter motor and a few other little pieces. This video is short and sweet and shows the process.
Want to see more of the Custom BMW R90/6 Project I'm working on? Check out the playlist here:
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I'm on Instagram @roodlum [ Ссылка ]
Parts made right here in Rochester, NY are available here:
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